545541443 has 2 divisors, whose sum is σ = 545541444. Its totient is φ = 545541442.

The previous prime is 545541419. The next prime is 545541481. The reversal of 545541443 is 344145545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545541443 - 2¹² = 545537347 is a prime.

It is not a weakly prime, because it can be changed into another prime (545541943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272770721 + 272770722.

It is an arithmetic number, because the mean of its divisors is an integer number (272770722).

Almost surely, 2^545541443 is an apocalyptic number.

545541443 is a deficient number, since it is larger than the sum of its proper divisors (1).

545541443 is an equidigital number, since it uses as much as digits as its factorization.

545541443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 35.

The square root of 545541443 is about 23356.8286160600. The cubic root of 545541443 is about 817.1013274296.

Adding to 545541443 its reverse (344145545), we get a palindrome (889686988).

The spelling of 545541443 in words is "five hundred forty-five million, five hundred forty-one thousand, four hundred forty-three".